625625077 has 16 divisors (see below), whose sum is σ = 782243712. Its totient is φ = 486097920.

The previous prime is 625625059. The next prime is 625625083. The reversal of 625625077 is 770526526.

It is a de Polignac number, because none of the positive numbers 2^k-625625077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625625057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15673 + ... + 38689.

It is an arithmetic number, because the mean of its divisors is an integer number (48890232).

Almost surely, 2^625625077 is an apocalyptic number.

It is an amenable number.

625625077 is a deficient number, since it is larger than the sum of its proper divisors (156618635).

625625077 is a wasteful number, since it uses less digits than its factorization.

625625077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23388.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 625625077 is about 25012.4984157921. The cubic root of 625625077 is about 855.2729094717.

The spelling of 625625077 in words is "six hundred twenty-five million, six hundred twenty-five thousand, seventy-seven".